CN102823293A - Centralized dynamic channel allocation for medical body area networks - Google Patents
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- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
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Abstract
A centralized frequency agility technique is employed in conjunction with a plurality of medical body area network (MBAN) systems (10, 35, 36), each of which comprises a plurality of network nodes (12, 14) intercommunicating via short range wireless communication. A central network (20, 22, 23, 24) communicates with the MBAN systems via longer range communication that is different from the short range wireless communication. A central frequency agility sub-system (40) is configured to communicate with the MBAN systems. The central frequency agility sub-system receives current channel quality information for a plurality of available channels for the short range wireless communication, and allocates the MBAN systems amongst the available channels based at least on the received current channel quality information.
Description
Technical field
Following content relates to medical monitoring field and association area.
Background technology
Medical treatment body area network (MBAN) has replaced a cable that is used for hospital patient is tied to the watch-dog on its next door with wireless connections.This provides cheaply wireless patient monitoring (PM), and can not have the caused not convenient and potential safety hazard of wired connection, and this wired connection possibly make the healthcare givers make mistakes, and perhaps possibly break off connecting and losing medical data.In the MBAN scheme, patient on one's body or diverse location place on every side connect a plurality of low-cost transducers, these transducers measure patient's physiologic information, like patient temperature, pulse, blood sugar level, electrocardiogram (ECG) data etc.These transducers are coordinated by at least one contiguous hub or gateway device, to form MBAN.Hub or gateway device use embedded short-distance wireless communication wireless device (for example, following IEEE 802.15.4 (Zigbee) short-range wireless communication protocol) and transducer to communicate.Information transducer is collected through the short-distance wireless communication of MBAN sends to hub or gateway device, thereby eliminates the demand to cable.Hub or gateway device are sent to central patient's monitoring (PM) via wired or wireless long-distance link with collected patient data and stand, to carry out centralized processing, demonstration and storage.For example, long-range network can comprise wired ethernet and/or wireless protocols (like Wi-Fi or certain ad Hoc wireless network agreement).For example, the PM station can comprise the electronic patient database of record, be arranged in the display device of nurse station or other position of medical facilities, or the like.
Physiological parameters of patients is obtained in the MBAN monitoring.Depend on the type of parameter and patient's state; The data of being obtained can be from " important " (for example; Under the monitoring healthy patient is healthy and strong the situation of health) in the scope of " life or death " (for example, under the serious ill situation of patient) at CICU.In general, because the cause of the medical content of data has strict reliability requirement to the MBAN Radio Link.
Small Area Wireless Communication Networks (like the MBAN system) is subject to interference effect.The spatial distribution attribute of short range network constitutes the sufficient room that may cause different short range networks with typical self-organizing (adhoc) and overlaps.The quantity of distributing to the short-range communication channel of short range communication systems also is subject to statutory regulation, network type or other factors usually.The short range network that overlaps and the combination of limited spectrum space (or limited channel quantity) may cause the conflict between the transmission of different short range networks.These networks possibly also receive the influence from the radio frequency interference (RFI) in other source (comprising the dissimilar source with the short range network system) easily.
The RFI that the prompt change of frequency of utilization (frequency agility) mechanism alleviates in the short range network is known.For example, in IEEE 802.15.4 (Zigbee), can use clear channel assessment (CCA) (CCA), the idle channel that is used to communicate by letter with identification, and avoid at busy channel or be subject to communicate on the channel from the RFI influence in other source.In bluetooth
TMIn the system, but use random frequency hopping to alleviate interfere from other co-existin networks.Other scheme is intercepted agreement (listen-before-talk protocol) before comprising DSSS (DSSS) and conversation.A kind of additional project is the error checking and correction of carrying out the data that transmitted, and for example, uses checksum test or the like.If the data that transmitted through error checking and correction, then can not retransmit these data to guarantee correctness.
Use for the short distance communication network that can tolerate some mistake and/or transmission delay, these technology generally are effective.Different MBAN systems has the different tolerance to transmission error and delay (depending on the application of these MBAN systems) usually.The MBAN system that is used for body-building or healthcare applications can tolerate these transmission errors and delay usually.Yet; The MBAN system that is used for high acuity monitoring carries vital medical data usually; Thereby have the very little tolerance or the tolerance that almost is free from mistakes, and this MBAN system can not accept transmission delay (transmission delay that for example, can be brought by re-transmission).Transmission delay is problems for these MBAN systems, because the delay when transmitting vital data may postpone the detection to the beginning of life-threatening situation.In addition, (for the patient comfort) that the sensor node of MBAN system is preferably little and have minimum complexity (to strengthen reliability and to reduce manufacturing cost.Thus, sensor node generally has data buffering on the limited plate, and therefore, the vital parameter of continuous monitoring (like the ECG data) must promptly be sent from sensor node, to avoid obliterated data.
Following content provides the new and improved apparatus and method that can overcome the problems referred to above and other problem.
Summary of the invention
According to a disclosed aspect, a kind of medical system comprises: a plurality of medical body area networks (MBAN) system, and each MBAN system comprises a plurality of network nodes that intercom mutually via short-distance wireless communication; Central network, it communicates via long distance wireless communication and said MBAN system, and said long distance wireless communication is different from said short-distance wireless communication; And the prompt varitron of central frequency system; It is used for communicating with said MBAN system; The prompt varitron of said central frequency system receives the current channel quality information of a plurality of available channels that are used for said short-distance wireless communication, and between said available channel, distributes said MBAN system based on the channel quality information that is received at least.
According to another disclosed aspect, a kind of method comprises: collect the current channel quality information of a plurality of channels, said a plurality of channels can be used between the network node of said MBAN system, carrying out short haul connection by a plurality of medical body area networks (MBAN) system; And, distribute said MBAN system at said interchannel at least based on collected current channel quality information.
An advantage is: a plurality of MBAN systems that possibly spatially overlap coexist safely.
Another advantage is: it is intrasystem or from the possibility of the transmission delay of MBAN system to reduce or eliminate MBAN.
Another advantage is: the possibility of losing that reduces or eliminates the crucial medical data that the MBAN system obtained.
Another advantage is: the importance of the data of being obtained according to each MBAN system has principle ground to have the short-range communication channel of different quality to the MBAN system assignment.
After reading and understanding following detailed, further advantage it will be apparent to those skilled in the art that.
Description of drawings
Fig. 1 illustrates medical body area network (MBAN) system under the medical environment background, and this system comprises the prompt varitron of the described central frequency of the application system.
Fig. 2 illustrates the ordered list of the available channel that is suitably produced by the prompt varitron of the central frequency of Fig. 1 system.
Initial treatment flow process when Fig. 3 illustrates these systems of initialization in the MBAN system in the prompt varitron of the central frequency system of Fig. 1 and Fig. 1.
Fig. 4 illustrate in the prompt varitron of the central frequency system of Fig. 1, in response to being the processing of request flow process of new MBAN system assignment communication channel.
Embodiment
With reference to Fig. 1, medical body area network (MBAN) 10 comprises a plurality of network nodes 12,14.In the network node 12,14 one of at least as hub device 14.Network node 12 communicates via short-range wireless communication protocol and hub device 14.In pertinent literature; MBAN 10 is also referred to as other equivalent terms sometimes, is interpreted as containing these different alternative terms like body area network (BAN), body sensor net (BSN), individual territory net (PAN), mobile ad hoc network (MANET) or the like-term " medical body area network (MBAN) 10 ".
Exemplary MBAN 10 comprises 4 exemplary network node 12,14 (comprising hub device 14); Yet; The quantity of network node can be one, two, three, four, five, six or more; In addition; In certain embodiments, when increasing to network or removing sensor node to increase or when removing the medical monitoring ability, the quantity of network node can increase with the mode of self-organizing or reduce from network.Network node 12 normally obtains the sensor node of physiological parameter (like heart rate, respiratory rate, electrocardiogram (ECG) data or the like); Yet what be envisioned that is that the one or more network nodes in the network node can be carried out other function, as connecting via skin test or vein medicine are carried out controlled delivery, carries out cardiac pacing function or the like.The single network node can be carried out one or more functions.Exemplary network node 12 is placed in the outside of the patient P that is associated; Yet; More generally, this network node can be placed in patient on one's body or in the patient body (for example, network node can adopt the form of implanted equipment); Perhaps; (for example, network node can adopt the form that is installed in the equipment on the intravenous injection pump (not shown), and wherein this intravenous injection pump is installed on the bar near patient near this network node can be placed in the patient within the communication range of short-range communication protocols; In this case, the patient data who is monitored can comprise the information such as the IV fluid flow velocity).Sometimes; Expectation makes network node as far as possible little of to promote the patient comfort; Expect that also network node has low complex degree to strengthen reliability-correspondingly; Such network node 12 is low-power equipment (is little to keep battery or other power supply unit) normally, and this network node can have storage or data buffering on the limited plate.Therefore, network node 12 should carry out continuously with hub device 14 or be close to continuous short-distance wireless communication, so that promptly pass on the patient data who is obtained to hub device 14, and the data buffer zone is overflowed.
Hub device 14 (in pertinent literature, being also referred to as other equivalent terms sometimes, like " gateway device " or " concentrator-node ") is through collecting (via Zigbee, bluetooth
TMOr other short-range wireless communication protocol) patient data who is obtained by the transducer of network node 12 and send collected data from MBAN 10 via the long haul communication agreement coordinates the operation of MBAN 10.Short-range wireless communication protocol preferably has short relatively opereating specification (tens meters, several meters or shorter); And in certain embodiments; Short-range wireless communication protocol suitably adopts IEEE 802.15.4 (Zigbee) short-range wireless communication protocol or its modification, perhaps bluetooth
TMShort-range wireless communication protocol or its modification.Bluetooth
TMAll in the spectral range of about 2.4-2.5GHz, operate with Zigbee.Although bluetooth
TMWith Zigbee be the suitable embodiment of short-distance wireless communication, but also be envisioned that other short-range communication protocols (comprising private communication protocol).In addition, except that the 2.4-2.5GHz scope, short-distance wireless communication can also be operated in other frequency (like scope or other scope of hundreds of megahertzes, thousands of megahertz, tens of gigahertzs).Short-range communication protocols should have enough scopes, so that the all-network node 12 of hub device 14 and MBAN system 10 communicates reliably.In Fig. 1, this short-distance wireless communication scope is indicated with diagramatic way by the dotted ellipse shape that is used for describing MBAN system 10.Short-distance wireless communication is normally two-way, makes that network node 12 can be to hub device 14 transmission information (for example, patient data, network node situation etc.); And hub device 14 can be to network node 12 transmission information (control data under for example, order, the treatment network node situation etc.).Exemplary hub device 14 is mounted in the equipment of wrist, yet hub device can also otherwise be installed on one's body the patient, for example, and as necklace equipment, adhering device etc.Can also be contemplated to hub device is installed near other place the patient, for example, integrate with the intravenous injection pump (not shown) that is installed on the bar that remains close to patient.
Hub device 14 also comprises the transceiver (not shown), and the latter provides long-range communications capabilities, so that data are seen off from MBAN system 10.In the illustrative example of Fig. 1, the access point (AP) 20 of hub device 14 and hospital network 22 carries out radio communication.Exemplary AP 20 is the WAPs that carry out radio communication with hub device 14.In the exemplary embodiment, hospital network 22 also comprises extra access point (like exemplary access point AP 23 and AP 24), and these access points are distributed in hospital or other medical facilities everywhere.For further specifying; Indicated nurse station 26 with diagramatic way; Itself and AP 24 carry out radio communication and comprise display monitor 28; Wherein, display monitor 28 can for example be used to show the medical data of patient P, and this medical data is obtained by MBAN system 10 and is sent to nurse station 26 via the path that comprises AP 20, hospital network 22 and AP 24.Lift another illustrative example; Hospital network 22 can provide the visit to electronic patient recording subsystem 30; In electronic patient recording subsystem 30, store the medical data of patient P, this medical data is obtained by MBAN system 10 and is sent to electronic patient recording subsystem 30 via the path that comprises AP 20 and hospital network 22.As indicated with virtually connecting wiring with diagramatic way among Fig. 1, the exemplary long haul communication between hub device 14 and the AP 20 is wireless.(similarly, the radio communication between AP 24 and the nurse station 26 is with virtually connecting the wiring indication).In some suitable embodiment, long distance wireless communication suitably is a WiFi communication link of following IEEE 802.11 wireless communication protocols or its modification.Yet other wireless communication protocol also can be used for long haul communication, like the wireless medical telemetry system (WMTS) of other type.In addition, long haul communication can be wire communication, like wired ethernet link (in this case, hub device comprises at least one cable that provides the line length range communication link).
Compare with the short haul connection between network node 12 and the hub device 14, long haul communication is longer distance.For example; The scope of short haul connection can be tens of centimetres, several meters or maximum possible tens of meters magnitudes; And long haul communication is usually through using a plurality of access points 20,23,24; Perhaps be dispersed in hospital's a plurality of Ethernet sockets everywhere with being equal to, cover the overwhelming majority of hospital or other medical facilities through under the situation of wired long haul communication, using.
Long haul communication (if wireless words) needs than short haul connection that more power-correspondingly, hub device 14 comprises power supply or other power supply that is enough to operate the long haul communication transceiver.Perhaps, hub device 14 can comprise that cable power connects.Hub device 14 also comprises on enough plates usually stores so that its can with the interbody spacer at a time of communicating by letter of AP 20 in a large amount of patient data of buffer memory under the situation that is interfered.In the example scenario of wireless long haul communication; It is to be further understood that; If patient P moves to outside the scope of AP 20 and gets in the scope of another AP (for example, AP23 or AP 24), so; The employed IEEE 802.11 of hospital network 22 (comprising its WAP 20,23,24) or other wireless communication protocol provide Radio Link, so that transfer to the AP of new vicinity from AP 20.To this, lie on the B although patient P is illustrated as, more general, be envisioned that patient P be movably and the different time shift-in with shift out the scope of each access point 20,23,24.When patient P moved like this, the MBAN 10 that comprises network node 12 and hub device 14 was also along with patient P moves together.
In MBAN 10, mobile node 12 communicates via short-distance wireless communication and hub device 14.Yet, can also be contemplated to, in pairs various or network node in groups 12 also can be via directly intercommunication (that is, not using hub device 14 as intermediary) mutually of short-distance wireless communication.This can be used for for example in time coordinating the activity of two or more network nodes.In addition, extra function-for example, hub device 14 can be provided can also be the network node that comprises the one or more transducers that are used to measure physiological parameter to hub device 14.In addition; Although what illustrate is single hub device 14; Be envisioned that coordination function (for example, from the data collection of network node 12, and via the collected data of long distance wireless communication unloading) is realized by two or more network nodes of carrying out coordination of tasks synergistically.
In exemplary diagram 1, only depicted in greater detail single MBAN system 10.Yet, can recognize that more general situation is, hospital or other medical facilities comprise a plurality of patients, each patient has its oneself MBAN system.This has been illustrated among Fig. 1 with diagramatic way through two extra MBAN systems 35,36, and this MBAN system 35,36 also communicates via long distance wireless communication and AP 20.Generally speaking, take the example of certain exemplary, the quantity of MBAN system can be: two, three, four, five, ten, 20 or more.In fact, even be envisioned that single patient has the MBAN system (not shown) of two or more different independent operations.Under this environment, can expect that each MBAN system once in a while may be quite approaching each other, make the scope of corresponding M BAN system wireless near field communication overlap mutually.
In addition; Hospital or other medical facilities have multiple radio frequency interference (RFI) source usually; The radio installation that communicates like the wireless device in magnetic resonance (MR) imagine scanner, computed tomography (CT) system, radiotherapy system, mobile phone and the computer, with ambulance, emergency helicopter, local police, fire alarm or other rescue worker, or the like.Therefore, should be with the mode of fully avoiding non-MBANRFI and fully avoiding the mode of the interference between the contiguous MBAN system, for each MBAN system assignment is used for the channel of their short haul connections separately.
The application discloses: with the mode of fully avoiding non-MBAN RFI and fully to avoid the mode of the interference between the contiguous MBAN system, use prompt (CFA) subsystem 40 that becomes of central frequency to assign short-range communication channel to the MBAN system.CFA subsystem 40 does not adopt usually in Zigbee, bluetooth
TMOr the prompt change technology of the distributed frequency that uses in other self-organizing Small Area Wireless Communication Networks, but centralization is carried out in the frequency agility processing.The disclosed centralized solution of the application has been utilized the existence of centralized long-range communication networks 20,22,23,24, and these centralized long-range communication networks are available in hospital or other medical facilities place, and the MBAN system is used for communicating with it.Through using centralized CFA subsystem 40 to realize frequency agilities, the data that might be obtained according to each MBAN system key has principle ground to have the short-range communication channel of different quality to the MBAN system assignment.For example, all collect important medical data although expect all MBAN systems, vital medical data (perhaps, as another example, can send the treatment intervention that earns a bare living) can be collected by some MBAN system; Yet medical data possibly collected from the healthy patient of just carrying out health therapy (like, the health of being healthy and strong) by other MBAN system.Through centralization is carried out in frequency agility; Might give the cleanest (cleanest) channel (possibility of disturbing from RFI and the meaning of current channel quality information) with these MBAN system assignment that relates to vital operation, and might give more rudimentary (but still acceptable) channel more not crucial MBAN system assignment.
CFA subsystem 40 is operated on a zone, in this zone, can reasonably expect the MBAN system to each other the phase mutual interference also/or experience common non-MBAN RFI.For large-scale medical facilities (like, multilayer hospital), more than one CFA subsystem can be provided, wherein, the CFA subsystem is dispersed in the medical facilities, so that frequency agility is provided for each zone of this facility.In a suitable scheme; For each AP 20,23,24 provides himself CFA subsystem-give an example; The CFA subsystem 40 of supposing Fig. 1 is associated with AP 20, and supposes it and carry out the frequency agility that is directed against MBAN system 10,35,36 and is directed against any other MBAN system that communicates by letter with AP 20.In such embodiment, CFA subsystem 40 can be realized that this processor is carried out appropriate software to realize CFA subsystem 40 by the processor of AP 20.Perhaps, CFA subsystem 40 can be realized by other processor of communicating by letter with AP 20 through hospital network 22.In addition, single CFA subsystem can perhaps be carried out centralized frequency agility for other suitable grouping of these MBAN systems for the MBAN system that communicates by letter with two or more access points.
CFA subsystem 40 receives the current quality information (CQI) of the channel that can be used for MBAN system short-distance wireless communication as input.Can collect current C QI information from each source.In certain embodiments, MBAN system 10,35,36 carries out clear channel assessment (CCA) (CCA) to produce current C QI information.In addition or alternatively, can provide special-purpose frequency spectrum watch-dog 44 (or spatial distribution of this kind equipment) to obtain CQI information.Frequency spectrum watch-dog 44 is AC power supply alternatively, makes these equipment need not change battery or battery is recharged.CCA is operated suitably by energy measuring (ED) or carrier sense or other suitable CCA and carries out, with interfere information in the band that produces channel.CQI information can also comprise that MBAN bag detects (for example, using high-gain aerial), with obtain with channel on the relevant information (comprising estimation) of current active to the transmission duty ratio.CQI information can also comprise the analysis of disturbing in the potential band, with assessment interference source (for example, 802.15.4,802.11b/g, bluetooth
TMOr the like).The CQI information that MBAN system 10,35,36 and/or frequency spectrum watch-dog 44 are obtained sends CFA subsystem 40 to via long haul communication, makes it possible to collect in concentrated area, CFA subsystem 40 place CQI information.
CFA subsystem 40 distributes MBAN system 10,35,36 at least based on the current C QI information that is received between available channel.This distribution can also be based on out of Memory, for example, and the RFI grade of each channel (it has indicated the possibility that the non-MBAN of experience disturbs on this channel), and service quality (QoS) rank of MBAN system 10,35,36.A kind of information in back (if available) is used to make said distribution to tend to the Channel Assignment with better current C QI (and RFI grade of the low possibility of (optional) indication RFI) to having other MBAN system of higher QoS level.
For example, in exemplary MBAN QoS hierarchy plan, M rank arranged; Wherein, the highest QoS rank (that is, rank 1) is to reserve for the MBAN system that relates to vital application; Minimum QoS rank (that is rank M) is used for non-critical application (like the health care monitoring).The QoS rank of MBAN system can be assigned when creating the MBAN system by physician, nurse or other healthcare givers.In addition or alternately, can come to assign automatically the QoS rank of MBAN system based on the application that moves in the MBAN system.Under a kind of situation in back,, suitably assign its rank to this MBAN system based on the most important application that the MBAN system is carrying out.In order to describe with diagramatic way, Fig. 1 illustrates and assigns the MBAN QoS rank 46 of giving MBAN system 10 (should be appreciated that in other MBAN system 35,36 each also have the MBAN QoS rank of appointment).
Alternatively, also be Channel Assignment RFI grade.These grades are different with the current C QI of channel, and current measurement or MBAN use because the RFI grade is not based on, and are based on possibility that non-MBAN RFI takes place on channel.For example, in a suitable RFI grade proposal, have 1 ..., a N RFI rating, wherein, RFI rating 1 is assigned to the channel with minimum non-MBAN RFI possibility, level n is assigned to the channel with the highest non-MBAN RFI possibility.At one more specifically in the example, can take a message for inner M (this channel be in particular MBAN use reserve and expectation have minimum non-MBAN RFI) assign RFI rank 1.Otherwise the RFI level n is used to have the MBAN channel of the maximum probability that receives other wireless system interference, and this channel can for example comprise the ISM channel that overlaps mutually with ISM 2.4GHz Wi-Fi channel.In certain embodiments, MBAN RFI grade be predefined and be stored in can database by CFA subsystem 40 visit in.
In the exemplary embodiment; CFA subsystem 40 is kept channel database 48; The latter enumerates its availability, its current use (promptly for each channel; Which MBAN system is assigned to this channel, and their duty ratio under the shared channel situation at least), the current C QI and the channel RFI grade of channel.Whether the availability of channel has indicated channel can be used by the MBAN system.Channel can be listed as unavailable from following a variety of causes: the current C QI of this channel possibly differ from and make it to be used by the MBAN system; Perhaps this channel can be used for MBAN use and current by main non-MBAN user's use in time strategic point; Or the like.Channel database 48 can have various forms, and can store various channel informations in every way.In one exemplary embodiment, can use following list structure:
Continuation is with reference to Fig. 1 and further with reference to Fig. 2, in order to help the efficient operation of MBAN system 10,35,36, in certain embodiments, channel database 48 through deleting that copy is made up by CFA subsystem 40, and be transmitted to the MBAN system.In exemplary diagram 1, the ordered list 50 of this available channel through being sent to and being stored in MBAN system 10 illustrates (it is understandable that the copy of ordered list 50 also is stored in each place in other MBAN system 35,36) with diagramatic way.Fig. 2 illustrates in greater detail ordered list 50 with diagramatic way.At least according to the current C QI of channel the ordered list 50 of channel is sorted, and in the exemplary embodiment, sort to ordered list 50 according to the RFI grade of channel in inferior strategic point.Ordered list 50 only comprises those channels that can in having other MBAN system of at least one MBAN level, use.In illustrative example: channel CQI rank " clean (Clean) " can be used for having the MBAN system of the highest MBAN rank 1 (for example, vital application), and is listed in the first place of ordered list 50; Channel CQI rank " acceptable " can be used for all the MBAN systems except that MBAN rank 1, and is listed in the next bit of ordered list 50; At last, channel level " bad (Poor) " is regarded as any MBAN system that is not useable for any kind, and correspondingly, it is not included in the ordered list 50.Upgrade channel database 48 termly, and upgrade ordered list 50 termly and it is resend MBAN system 10,35,36.
Below provide a kind of scheme that is used to be built with sequence table 50.Input parameter comprises the channel CQI that records (aspect non-MBAN interference plus noise power) of all available channels (be included in and classify disabled channel in the database 48 as).Channel CQI is based on by MBAN system 10,35,36 and/or is confirmed by optional special-purpose frequency spectrum watch-dog 44 measured channel quality informations.Alternatively, input parameter also comprises by the current active employed radio spectrum of non-MBAN wireless network.This information can come from can be by the database (not shown) of CFA subsystem 40 (for example, via hospital network 22) visit.For example, such database can comprise the experience measurement data and/or based on the information of the specified spectrum RFI of electronic equipment in the hospital.This information can also be implemented in the RFI grade of channel-for example; If MRI system of known hospital produces strong RFI at particular channel; Then this channel can be given the RFI grade, this RFI graded response suffer expection high likelihood from the RFI of MRI system of hospital.Another optional input is the RF spectrum that will protect.For example, if inferior strategic point is distributed a frequency band and some active main users are arranged in this frequency band, the so active presently used RF spectrum of main users should not be assigned to the arbitrary system in the MBAN system.This information can combine the knowledge of less important allocation situation of the channel of MBAN system to produce through CCA.Thereby, suitably provide sort algorithm as follows.At first, should from ordered list 50, save all channels in the RF spectrum that to protect.(it is current by the employed frequency spectrum of main users that this has suitably been avoided making the MBAN system to use).Secondly, through RFI grade i (i equals 1 to N) channel is divided into groups.For the channel of each RFI grade, become three CQI to divide into groups channel packet: " clean ", " acceptable ", " pollution ".A kind of mode of carrying out this operation is: if non-MBAN interference plus noise power greater than " pollution " threshold value, is to have " pollution " current C QI with this channel tag then; If non-MBAN interference plus noise power is " clean " with this channel tag then less than " clean " threshold value (and this channel is not in by current active employed RF spectrum of non-MBAN wireless network); Otherwise, be " acceptable " with this channel tag.Be considered to be not useable for to distribute to the MBAN network with any channel of " pollution " channel CQI institute mark, and correspondingly, from ordered list 50, omit these channels.At last, based on non-MBAN interference plus noise power, the residue channel with " clean " or " acceptable " channel CQI is sorted, and the result is made up to set up the available channel ordered list 50 shown in Fig. 2 by ascending order.
The ordered list 50 of available channel can be used by MBAN system 10 in every way.For example, when carrying out CCA, MBAN system 10 only collects the CQI information of those listed in the ordered list 50 channels alternatively.This scheme has increased efficient through avoiding that disabled channel is carried out CCA.As Another Application; Under the situation that exists RFI to disturb on the channel of current distribution or conflict; MBAN system 10 can be with reference to ordered list 50, to discern suitably " clean " (or " acceptable ", under the vital situation of MBAN QoS rank 46 right and wrong) channel; Wherein, MBAN system 50 switches to this channel to avoid RFI or conflict.Subsequently, this this locality is redistributed decision-making and is forwarded to CFA subsystem 40, so that get into channel database 48.If this this locality is redistributed decision-making and is confirmed as and can not be accepted by CFA subsystem 40, then it can take suitable remedial measure.
Having seen figures.1.and.2 discloses the suitable embodiment of centralized frequency agility system, further sets forth some other operating aspects with reference to the flow chart of Fig. 3 and Fig. 4.
Set forth the start-up course of originally powering on for AP 20 and MBAN 10 with reference to Fig. 1 and Fig. 3.When powering on for AP 20, its CFA subsystem 40 of initialization and the channel database 48 that is associated in operation 60.Also come suitably to produce the ordered list 50 of available channel based on predefined channel RFI grade.Be set to " free time " through all available channels and come Initial Channel Assignment user mode table.In operation 62; Use is communicated to the channel CQI information of AP 20 from MBAN system 10,35,36 and/or watch-dog 44 via long haul communication; Come initialization or upgrade the channel CQI value in the channel database 48, and use the cumulative information in the channel database 48 the MBAN system assignment to be given available channel with the channel CQI that matches with MBAN QoS rank.Indicated like loop 64, when receiving extra channel CQI information, upgrade operation 62.
As to exemplary MBAN system 10 with shown in the diagramatic way, combine the CCA perhaps to come executable operations 62 by MBAN system 10,35,36 and/or watch-dog 44 other performed CQI information captures.In Fig. 3, MBAN 10 powers in 70 in operation, and in operation 72 via the ordered list 50 of long haul communication receive channel.Subsequently, execution CCA or other channel CQI information capture in 74 are being operated by MBAN system 10, and via long haul communication CQI information are conveyed to CFA subsystem 40, so that in operation 62, use (indicating with diagramatic way through connection arrow 76 in like Fig. 3).In operation 78; The request that MBAN system 10 sends new channel allocation to CFA subsystem 40 via long haul communication; And in operation 80, MBAN system 10 receives new channel allocation via long haul communication from CFA subsystem 40 once more, and beginning MBAN operation.
Continuation is with reference to Fig. 1 and Fig. 3 and further with reference to Fig. 4, and operation 78 produces the new MBAN channel assignment request of being handled by CFA subsystem 40 84 (as shown in Figure 4).New MBAN channel assignment request 84 has the MBAN rank parameter that is associated, and this parameter is indicated the MBAN QoS rank 46 of the MBAN 10 that new channel is assigned to.In operation 86, CFA subsystem 40 search channel databases 48 are to seek empty available channel.In this case, " empty " means that the channel condition information in the user mode table is " free time ", and by the CCA 74 of MBAN 10 execution this channel to be shown also be " free time ".If operate 86 identification clearancen available channels, then in operation 88, CFA subsystem 40 is distributed to this channel with MBAN 10, and CFA subsystem 40 sends to channel allocation response and selected vacant channels numbering the hub device 14 of MBAN 10.MBAN10 begins operation (this is corresponding to " receiving and operation " operation 80 of carrying out at MBAN 10 places) at the channel place that is distributed, and MBAN 10 confirms to beam back CFA subsystem 40 with Channel Assignment alternatively.In operation 90, CFA subsystem 40 uses new Channel Assignment to upgrade channel database 48.On the other hand; If there is not " sky " channel to use, then CFA subsystem 40 executable operations 92 are being operated in 92; " busy " channel in the CFA subsystem 40 search channel databases 48, this busy channel uses by having than other existing MBAN system of the low QoS level of new MBAN system 10.If find such " busy " channel; Then CFA subsystem 40 sends order to the MBAN system of on this " busy " channel, operating; And they are redistributed to (but still acceptable) other channel with low channel CQI; And CFA subsystem 40 is distributed to the channel of vacateing with MBAN system 10, and operates 90 database update subsequently.Said " other channel " (low other MBAN system of MBAN QoS level that has that is pre-existing in is redistributed to this " other channel ") can be by one or more other MBAN systems employed " busy " channel; As long as the summation of their polymerization duty ratio is lower than certain threshold value, can not take place owing to the remarkable increase of redistributing the collision probability that causes with assurance.Having under the crowded egregious cases together of too many MBAN system, CFA subsystem 40 can produce alert message to the system manager.
When enlivening the MBAN system and move in the coverage of AP 20, this enlivens the MBAN system and will carry out and switch and be connected to AP 20.This MBAN system suitably continues on its current short-range wireless communication channel, to operate, but also to its current channel allocation of the CFA of AP 20 subsystem 40 report, its MBAN QoS rank with and the polymerization duty ratio.CFA subsystem 40 judges whether the new MBAN system of on its current channel, operating can cause conflict potential in this channel to increase.If really not so, then CFA subsystem 40 upgrades channel database 48, with the use to channel of the MBAN system that reflects new entering.On the other hand, if collision probability increases, channel has the RFI grade of the high likelihood of having indicated RFI or is unacceptable in others, and the process of CFA subsystem 40 execution graphs 4 then is with to the new channel of the MBAN of new entering system assignment.
If the MBAN system detects the channel quality degradation and (for example can't correctly operate; Owing to non-MBAN RFI; Perhaps with same channel on the conflicting of short-distance wireless communication of contiguous MBAN system), then the MBAN system suitably carries out local channel and redistributes to switch to new channel.This local channel is redistributed suitably the CCA that carries out based on by the MBAN system, and based on the copy of the ordered list 50 of the available channel that is stored in MBAN system place.This local channel is redistributed and is guaranteed that the MBAN system can promptly switch to new channel, and can avoid losing potential crucial medical data thus.Yet it is interim that local channel is redistributed.The MBAN system redistributes to CFA subsystem 40 report local channels, and this CFA subsystem 40 judges based on the information that comprises in the centralized channel database 48 whether this local channel is redistributed is acceptable.If it is unacceptable that this local channel is redistributed, then the process of CFA subsystem 40 execution graphs 4 is to give the MBAN system with new channel allocation, and this local channel is redistributed thereby " refuse (overrule) " effectively.
Continuation is also further got back to reference to Fig. 3 with reference to Fig. 1, and CFA subsystem 40 execution cycle property MBAN system is alternatively redistributed operation 94.This operation is to carry out as centralized more the newly arriving that the MBAN system channel distributes; And this operation can (with by way of example) will have other MBAN system of the highest MBAN QoS level and move to the channel (measuring through current channel CQI and channel RFI grade) of best quality, and will have low other MBAN system of MBAN QoS level and switch to and have low-qualityer other available channel.Periodically batch operation 94 guarantees that the MBAN system carries out optimal allocation between available channel again.
When the MBAN system shifted out the coverage of AP 20, perhaps when the MBAN system that AP 20 is served turn-offed, the CFA subsystem 40 of AP 20 suitably removed the channel that is used for this MBAN system subsequently and uses information from channel database 48.
This application has has been described one or more preferred embodiments.After reading and understand the detailed description that the front provides, can make amendment and change other embodiment.The application is intended to be interpreted as and comprises all this type of modification and changes, as long as these modifications and change drop in the protection range of appended claims or its equivalent.
Claims (21)
1. medical system comprises:
A plurality of medical body area networks (MBAN) system (10,35,36), each MBAN system (10) comprises a plurality of network nodes (12,14) that intercom mutually via short-distance wireless communication;
Central network (20,22,23,24), it communicates via long distance wireless communication that is different from said short-distance wireless communication and said MBAN system;
The prompt varitron system (40) of central frequency; It is used for communicating with said MBAN system; The prompt varitron of said central frequency system receives the current channel quality information of a plurality of available channels that are used for said short-distance wireless communication, and between said available channel, distributes said MBAN system based on the current channel quality information that is received at least.
2. device according to claim 1; Wherein, Each MBAN system (10) comprises a plurality of network nodes (12) that communicate via short-distance wireless communication and hub device (14), and said hub device is via said long haul communication and said central network (20,22; 23,24) communicate.
3. according to the described device of arbitrary claim among the claim 1-2, wherein, the prompt varitron system of said central frequency (40) also distributes said MBAN system based on the following between said available channel:
(i) the radio frequency interference grade of said channel; And
The levels of quality of service (46) of (ii) said MBAN system.
4. device according to claim 3, wherein, in response to receiving new channel assignment request from unappropriated MBAN system (10), the prompt varitron system of said central frequency (40) carries out the method that comprises the following:
Have in existence under the situation of empty available channel of the radio frequency interference grade that the levels of quality of service with said unappropriated MBAN system matches, give empty available channel said unappropriated MBAN system assignment; And
If there is not empty available channel with radio frequency interference grade that the levels of quality of service with said unappropriated MBAN system matches; To have then that other is redistributed to another channel in the MBAN system of operation than the low quality of service level of the levels of quality of service of said unappropriated MBAN system, and will said unappropriated MBAN system assignment to through the said channel of vacating of redistributing.
5. according to the described device of arbitrary claim among the claim 3-4; Wherein, The prompt varitron system of said central frequency (40) is to exclusively assigning the Channel Assignment of giving MBAN system short-distance wireless communication to indicate the radio frequency interference grade of relatively low radio frequency interference possibility, and to assign the radio frequency interference grade of having indicated higher relatively radio frequency interference possibility to the two Channel Assignment of the non-MBAN short-distance wireless communication of MBAN system short-distance wireless communication and at least a type sharedly.
6. according to the described device of arbitrary claim among the claim 1-5, wherein, said MBAN system (10,35,36) is used for:
Obtain the current channel quality information of said a plurality of available channels; And
Send the current channel quality information that is obtained to the prompt varitron system of said central frequency (40) via said long haul communication.
7. according to the described device of arbitrary claim among the claim 1-6, also comprise:
At least one frequency spectrum watch-dog (44) is used for:
Obtain the current channel quality information of said a plurality of available channels; And
Send the current channel quality information that is obtained to the prompt varitron system of said central frequency (40) via said long haul communication.
8. according to the described device of arbitrary claim among the claim 1-7, wherein, the prompt varitron system of said central frequency (40) is used for:
Make up the ordered list (50) of available channel, said ordered list is to sort based on the current channel quality information of said available channel at least; And
Via said long haul communication, send the ordered list of said available channel to said a plurality of MBAN systems (10,35,36).
9. device according to claim 8; Wherein, The prompt varitron system of said central frequency (40) saves to have from the ordered list (50) of said available channel and has indicated current channel quality too poor so that can't be by any MBAN system (10; Any channel of the current channel quality information that 35,36) uses.
10. the described device of arbitrary claim according to Claim 8-9; Wherein, The prompt varitron system of said central frequency (40) saves time strategic point and can be used for said MBAN system (10 from the ordered list (50) of said available channel; 35,36) and the current any channel that uses by main non-MBAN user.
11. the described device of arbitrary claim according to Claim 8-10, wherein, said MBAN system (10,35,36) is used for:
Only obtain the current channel quality information of the available channel of enumerating in the ordered list (50) of said available channel; And
Send the current channel quality information that is obtained to the prompt varitron system of said central frequency (40) via said telecommunication.
12. the described device of arbitrary claim according to Claim 8-11 wherein, detects radio frequency interference or conflict in response to the MBAN system:
(i) said MBAN system (10) is to the new channel that himself distributes selection from the ordered list (50) of said available channel, wherein, is at least in part based on to the ordering of said ordered list to the selection of said new channel;
(ii) said MBAN system transmits said new channel allocation to the prompt varitron system of said central frequency (40); And
The prompt varitron of (iii) said central frequency system accepts or refuses said new channel allocation.
13. the described device of arbitrary claim according to Claim 8-12; Wherein, The prompt varitron system of said central frequency (40) comes the ordered list (50) to said available channel to sort based on the current channel quality information of said available channel and based on the radio frequency interference grade of said channel.
14. according to the described device of arbitrary claim among the claim 1-13, wherein:
Said center system (20,22,23,24) comprises the long distance wireless communication of being realized by the access point (20,23,24) of a plurality of spatial distributions; And
The prompt varitron system of said central frequency (40) distributes the said MBAN system (10,35,36) that distributes to common access point (20) between said available channel.
15. according to the described device of arbitrary claim among the claim 1-15; Wherein, the prompt varitron system of said central frequency (40) is at least based on said current channel quality information, comes to repeat termly between said available channel said MBAN system (10; 35,36) said distribution.
16. a method comprises:
Collect the current channel quality information of a plurality of channels, said a plurality of channels can be used between the network node (12,14) of said MBAN system, carrying out short haul connection by a plurality of medical body area networks (MBAN) system (10,35,36);
At least based on collected current channel quality information, distribute said MBAN system at said interchannel.
17. method according to claim 16, wherein, said distribution is also based on the levels of quality of service (46) of said MBAN system (10,35,36).
18. method according to claim 17, wherein, said distribution comprises:
If it is available having the vacant channels of the current channel quality information that the levels of quality of service (46) with unappropriated MBAN system (10) matches, then give vacant channels with said unappropriated MBAN system assignment;
If it is available not having the vacant channels of the current channel quality information that the levels of quality of service with said unappropriated MBAN matches, then:
To have quality of service level other MBAN system of having distributed lower than the levels of quality of service of said unappropriated MBAN redistributes to the channel with lower current service quality; And
Said unappropriated MBAN system assignment is given through the said channel of vacating of redistributing.
19. the described method of arbitrary claim according among the claim 16-18 also comprises:
Produce the collection operation of locating through said MBAN system (10,35,36) and the said current channel quality information of collecting.
20. the described method of arbitrary claim according among the claim 16-18 also comprises:
At least based on the current channel quality information of said channel, make up the ordered list (50) of available channel; And
Transmit the ordered list of said available channel to said MBAN system (10,35,36); Wherein, Said MBAN system produces current channel quality information, and this current channel quality information is through said collection operation, only collects to the channel in the ordered list of said available channel.
21. the described method of arbitrary claim according among the claim 16-20 also comprises:
At least based on the current channel quality information of said channel, make up the ordered list (50) of available channel;
Transmit the ordered list of said available channel to said MBAN system (10,35,36); And
Based on the ordered list of the available channel that is transmitted, carry out local channel at MBAN system place and redistribute.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105340314A (en) * | 2013-06-28 | 2016-02-17 | 皇家飞利浦有限公司 | MBAN channel management scheme using patient acuity information |
| CN106134246A (en) * | 2014-03-25 | 2016-11-16 | 皇家飞利浦有限公司 | For medical science body area network (MBAN) to meet the multichannel communication scheme of dutycycle rule |
| CN108025176A (en) * | 2015-09-22 | 2018-05-11 | 美敦力公司 | Systems and methods for interacting with implantable medical devices |
| WO2021134650A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳迈瑞生物医疗电子股份有限公司 | Wireless communication device |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10335060B1 (en) | 2010-06-19 | 2019-07-02 | Dp Technologies, Inc. | Method and apparatus to provide monitoring |
| US9192326B2 (en) | 2011-07-13 | 2015-11-24 | Dp Technologies, Inc. | Sleep monitoring system |
| CN102387508B (en) * | 2011-11-01 | 2019-05-24 | 中兴通讯股份有限公司 | The method and apparatus of carrier wave polymerization in a kind of lte-a system |
| US9439196B2 (en) | 2011-12-05 | 2016-09-06 | Koninklijke Philips N.V. | Electronic key convey solution for in-hospital medical body area network (MBAN) systems |
| US9459597B2 (en) | 2012-03-06 | 2016-10-04 | DPTechnologies, Inc. | Method and apparatus to provide an improved sleep experience by selecting an optimal next sleep state for a user |
| US10791986B1 (en) | 2012-04-05 | 2020-10-06 | Dp Technologies, Inc. | Sleep sound detection system and use |
| JP5958125B2 (en) * | 2012-07-05 | 2016-07-27 | 富士通株式会社 | Wireless communication apparatus and control method |
| US9474876B1 (en) | 2012-12-14 | 2016-10-25 | DPTechnologies, Inc. | Sleep aid efficacy |
| US9594354B1 (en) | 2013-04-19 | 2017-03-14 | Dp Technologies, Inc. | Smart watch extended system |
| US10022086B1 (en) * | 2013-04-19 | 2018-07-17 | Dp Technologies, Inc. | Extended band system |
| KR101816567B1 (en) * | 2013-11-12 | 2018-02-21 | 한국전자통신연구원 | Method and apparatus of interference avoidance based on multi transmission and reception |
| US11963792B1 (en) | 2014-05-04 | 2024-04-23 | Dp Technologies, Inc. | Sleep ecosystem |
| WO2015190535A1 (en) * | 2014-06-10 | 2015-12-17 | 株式会社 東芝 | Integrated circuit for wireless communication, wireless communication terminal, and wireless communication method |
| US20180167266A1 (en) * | 2014-07-30 | 2018-06-14 | KABUSHlKl KAISHA TOSHIBA | Configuring MAC Parameters in Body Area Networks |
| JP2016046726A (en) | 2014-08-25 | 2016-04-04 | 富士通株式会社 | Ban system, terminal device, ban communication method, and ban communication program |
| US9924514B2 (en) * | 2014-12-30 | 2018-03-20 | SiTune Corporation | Channel selection for concurrent communications between wireless devices |
| US9628168B2 (en) * | 2015-02-26 | 2017-04-18 | Space Systems/Loral, Llc | Dynamic link adaption and/or dynamic allocation of communication resources of a communication system based on external interference information received from external interference information sources |
| US11883188B1 (en) | 2015-03-16 | 2024-01-30 | Dp Technologies, Inc. | Sleep surface sensor based sleep analysis system |
| US9549387B2 (en) * | 2015-05-29 | 2017-01-17 | Apple Inc. | Techniques for reducing interference in communications using conducted RF links |
| US10673603B2 (en) | 2015-10-23 | 2020-06-02 | Taiwan Semiconductor Manufacturing Company, Ltd. | Integrated circuit with radio frequency interconnect |
| US10230491B2 (en) | 2015-12-15 | 2019-03-12 | General Electric Company | System and method for communication in a body area network system |
| FR3049809B1 (en) * | 2016-03-29 | 2018-04-20 | Sagemcom Energy & Telecom Sas | METHOD FOR MANAGING THE ALLOCATION OF CARRIER FREQUENCIES |
| US11024064B2 (en) | 2017-02-24 | 2021-06-01 | Masimo Corporation | Augmented reality system for displaying patient data |
| EP3585254B1 (en) | 2017-02-24 | 2024-03-20 | Masimo Corporation | Medical device cable and method of sharing data between connected medical devices |
| CN110809804B (en) | 2017-05-08 | 2023-10-27 | 梅西莫股份有限公司 | System for pairing a medical system with a network controller using an adapter |
| US10477406B2 (en) | 2017-09-20 | 2019-11-12 | Motorola Solutions, Inc. | Device, system and method for dynamic channel assignment |
| US11382534B1 (en) | 2018-10-15 | 2022-07-12 | Dp Technologies, Inc. | Sleep detection and analysis system |
| EP3709669A1 (en) * | 2019-03-13 | 2020-09-16 | Koninklijke Philips N.V. | Recommending whether a subject monitoring system uses a wireless communication mode |
| CN117880991A (en) * | 2019-05-20 | 2024-04-12 | 华为技术有限公司 | Indication method and device for resource allocation |
| US20230200649A1 (en) * | 2020-05-22 | 2023-06-29 | Lifelens Technologies, Inc. | Gateway device facilitating collection and management of data from a body area network to a study coordinating system |
| WO2022045875A1 (en) * | 2020-08-28 | 2022-03-03 | Mimos Berhad | System and method for qualitative internet of things communications |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930899A (en) * | 2004-03-05 | 2007-03-14 | 株式会社Ntt都科摩 | Frequency channel assigning system, base station, control station, inter-system common control apparatus, frequency channel assigning method and control method |
| EP2083594A2 (en) * | 2008-01-28 | 2009-07-29 | Fujitsu Limited | Method and system for interference mitigation in a wireless communication system formed by multiple radio access networks |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3109504B2 (en) * | 1998-03-27 | 2000-11-20 | 日本電気株式会社 | Cellular system, method for avoiding adjacent frequency interference in cellular system, and mobile station |
| TWI258276B (en) * | 2004-11-25 | 2006-07-11 | Inst Information Industry | Dynamic channel allocation for wireless access points and wireless networks |
| US20060224048A1 (en) * | 2005-03-22 | 2006-10-05 | Aware Technologies, Inc. | Wearable personal area data network |
| GB2429875B (en) * | 2005-09-05 | 2008-03-12 | Toshiba Res Europ Ltd | Improved broadband carrier frequency selection |
| US7580682B2 (en) * | 2005-12-02 | 2009-08-25 | Robert Bosch Gmbh | Method and apparatus for comprehensive link assessment and frequency monitoring in wireless sensor networks |
| JP2008053889A (en) * | 2006-08-23 | 2008-03-06 | Matsushita Electric Ind Co Ltd | Handover method, base station, terminal station, program recording medium and integrated circuit |
| KR100928678B1 (en) * | 2006-10-02 | 2009-11-27 | 삼성전자주식회사 | Method and device for controlling connection admission in broadband wireless access system |
| JP4946596B2 (en) * | 2007-04-23 | 2012-06-06 | 日本電気株式会社 | Radio resource allocation apparatus and method |
| KR101398359B1 (en) * | 2007-07-31 | 2014-05-26 | 삼성전자주식회사 | Method for switching channels through which contenst data is received in zigbee network system and the zigbee network system |
| US8190167B2 (en) * | 2008-09-29 | 2012-05-29 | Intel Corporation | Wireless device channel selection using dynamic channel allocation |
| US8478282B2 (en) * | 2008-10-20 | 2013-07-02 | Centurylink Intellectual Property Llc | Method and apparatus for managing frequencies used by devices |
| US8305917B2 (en) * | 2009-03-23 | 2012-11-06 | Motorola Solutions, Inc. | System and method for maintaining a backup radio operating parameter list in a secondary use communication system |
| RU91838U1 (en) * | 2009-08-10 | 2010-03-10 | Федеральное агентство по науке и инновациям (Роснаука) | WEARABLE TELECOMMUNICATION COMPLEX OF MONITORING THE FUNCTIONAL STATE OF A HUMAN |
| US8340578B2 (en) * | 2009-10-05 | 2012-12-25 | Apple Inc. | Methods and apparatus for enhanced coexistence algorithms in wireless systems |
-
2011
- 2011-03-15 US US13/636,184 patent/US20130023214A1/en not_active Abandoned
- 2011-03-15 WO PCT/IB2011/051080 patent/WO2011124995A1/en active Application Filing
- 2011-03-15 BR BR112012025263-1A patent/BR112012025263A2/en not_active Application Discontinuation
- 2011-03-15 EP EP11714112.7A patent/EP2556697B1/en not_active Not-in-force
- 2011-03-15 CN CN201180017374.9A patent/CN102823293B/en not_active Expired - Fee Related
- 2011-03-15 JP JP2013503193A patent/JP5797258B2/en not_active Expired - Fee Related
- 2011-03-15 RU RU2012146974/08A patent/RU2576475C2/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930899A (en) * | 2004-03-05 | 2007-03-14 | 株式会社Ntt都科摩 | Frequency channel assigning system, base station, control station, inter-system common control apparatus, frequency channel assigning method and control method |
| EP2083594A2 (en) * | 2008-01-28 | 2009-07-29 | Fujitsu Limited | Method and system for interference mitigation in a wireless communication system formed by multiple radio access networks |
Non-Patent Citations (1)
| Title |
|---|
| BUDDHIKA DE SILVA ET AL: "Inter-User Interference in Body Sensor Networks:Preliminary Investigation and an Infrastructure-Based Solution", 《WEARABLE AND IMPLANTABLE BODY SENSOR NETWORKS, 2009. BSN 2009. SIXTH INTERNATIONAL WORKSHOP ON》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105340314A (en) * | 2013-06-28 | 2016-02-17 | 皇家飞利浦有限公司 | MBAN channel management scheme using patient acuity information |
| CN105340314B (en) * | 2013-06-28 | 2019-06-28 | 皇家飞利浦有限公司 | Use the MBAN Channel Management System of conditions of patients information |
| CN106134246A (en) * | 2014-03-25 | 2016-11-16 | 皇家飞利浦有限公司 | For medical science body area network (MBAN) to meet the multichannel communication scheme of dutycycle rule |
| CN106134246B (en) * | 2014-03-25 | 2020-03-03 | 皇家飞利浦有限公司 | Multi-channel communication scheme for Medical Body Area Networks (MBANs) to satisfy duty cycle rules |
| CN108025176A (en) * | 2015-09-22 | 2018-05-11 | 美敦力公司 | Systems and methods for interacting with implantable medical devices |
| US11883202B2 (en) | 2015-09-22 | 2024-01-30 | Medtronic, Inc. | System and method for interacting with an implantable medical device |
| WO2021134650A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳迈瑞生物医疗电子股份有限公司 | Wireless communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2556697A1 (en) | 2013-02-13 |
| JP2013524667A (en) | 2013-06-17 |
| WO2011124995A1 (en) | 2011-10-13 |
| EP2556697B1 (en) | 2018-05-16 |
| RU2576475C2 (en) | 2016-03-10 |
| RU2012146974A (en) | 2014-05-27 |
| CN102823293B (en) | 2015-12-09 |
| BR112012025263A2 (en) | 2020-07-14 |
| US20130023214A1 (en) | 2013-01-24 |
| JP5797258B2 (en) | 2015-10-21 |
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